Fuse-plug.



H. F. GOETZ.

FUSE PLUG. APPLICATION FILEDMAYB. ms.

1,282,566. Patented Oct. 22, 1918.

Hip m L] "o'n'rTED STATES Piiirnn'tr error: i

HENRY E. GGETZ, WATERBURY CONNECTICUT, ASSIGNOR 10 WATE'RBUHY MFG. C0,

OF W'ATERBURY, CONNECTICUT, A. CORPORATIGN.

FUSE-PLUG.

Specification of Letters Patent Application filed May 5, 1918. Serial No. 232,749.

citizen of the llnited Slates, residing at il'ulcrbury, in the county of New l'luveir description of the sunie, and which said.

drawin s constitute part of this application, and represent, .in

Figure 1 :1 View in side elevation of a fuse plug constructed in accordance with my in \ienrion.

Fig 2 ii view thereof in'centrzil longitudinzil section on the line F2-2 of Fig. 1.

:3 ll reverse plan View thereof.

Fig. l u deimi-hed plan view of the cupped ;'-;hcet--uieliul eonliuci.

lllg. :"i a View {hereof in side elevation.

l ig. ll) 21 corresponding View taken at a I angle to Fig.

T n SQLilUllill YlQW on the line 7-7 of I invention rehi'tes to an improved fuse {or eleeiricul purposes, the object being low cost for manufacture, i unc-plugs o1 sniperim ellieiency due to the eniployinent oi sheet-niehil contacts of spe einl construction, whereby their correct seat ing" in the plugl'iody is assured. these ends i in filo/W. my invention lug; having certain details of .ons'lrurliou in; will be hereinafterdessrri ed and poinl'ed out in the claim.

i ourrfr'ing out my invention, I employ inury chambered porcelain body 8 :it is outer end with a beveled conflange 5,) over which is eluspeil 21 opening ll lor l'h'e exposure of the cenlrul oorl hm ol :1 l'rzznspl'irent mien dish or llOSlllO :8 held in plaice by the cup in 'rhe usual nuun The mid ll ere in formed Hill! on innwenege i lending iuio lhe chamber llic plug. the inlerior oi i'his chamber l ol' living visible llu'ougli {he said iuicu dislc 1Q.

': 'il o passage 23 receives 2L connecting strip 22w outer end 0! wlurh 1S soldered at 15 lo the oulor edge o? u scrcn shell i? which rounds llie body of the plug. the said hoil; being molded will! threads 18 for the retention of the shell 17 in place The inner end of the slri. has soldered to it at 19 the outerencl or a fuse wire :20 the inner end of which is bent at 21 and hooked under and soldered as at 22 to one of the two coinplemenial-y arms 23 of a sheetonetul Contact mounted in a small circular Concentric pussage 2% formed in the rounded inner end of the body 8. The said Contact, which made of a singlepiece of sheetonetal, coniprises the complementary arms 23 aforesaid, and EL shallow, circular cup 25 having a benringlhuige 26 the full circun'ifcrenee of which is seamed upon the outer fan of the rounded end of the plug-body S. The said hinge 26 is at lease equal in depth to the thickness of the sheehn'ietal from which the Contact is made, so that it will fully ac-Conn module the horizontally arranged bnthends or reaches 27 of the arms which are bent inwardly from opposite points on the hinge 26 which is thus permitted to bear through out its entire circle directly upon the outer face of the inner end of the body 8 since the cu p 25 being" at lmst as deep as the ihicle ness of the reaches 27, receives the some and so leaves their outer ends flush with the edge of the flange. The arms 23 as; they rise from the reaches 25) are made eoncziro coirvex in crosis section so thee their outer feces will lit inlo and conform lo the walls of the hole 24. The arms of the contact are sprungapart and, have their order ends outwardly upset after the Contact inserted ini'o the hole 52%) as shown in Fig whereby the cow we is retained in place. On :ic'emuit of its construction, the contact" seals itself in the plug body so llllllbliCS outer face will entirely lie in a plane at a right angle to the axis of the plug; whereby a, perfeel contact is ussured, whereas if the conmerl' is tilled in lhc plug as is often the ruse with the confines now in use only the high. were so to speak; on its ouier fzice will be engz gg'c h :1 nd :2 poor confine!" will resuli.

in u fuse-plug, the conibinulion with he porcelain body thereof, of a cup uppliiwl formed with a bearing-flange equal in depth In testimony whereof, 'I have signed this to the thickness of the metal for the hemp specification in the presence of two subscribtion of the horizontal butt-ends 01' reaches of ing Witnesses. the said arms, a fuse having its inner end HENRY F. qhETz.

5 soldered to one of the said arms of the con- Witnesses:

tact, and a connecting stri between the Gnome W. Gunman, outer end of the said fuse an the said shell. R. H. SnELmncH. 

